| 摘要 |
An electroacoustic transducer in which resonance ratio effects above 3500 Hz are attenuated by acoustic means, wherein the transducer membrane is disposed in a cavity which is sub-divided thereby, the sound-receiving space at the front side of the membrane being sub-divided by a separation plate having acoustic transmission openings therein, a mounting cap forming the front wall of said sound-receiving space and provided with acoustic transmission openings therein, and an attenuation member disposed between the separation disk and the mounting cap, which forms a low-pass filter for sound traveling to said membrane. The invention has particular application in piezo microphones in telephone technology. |
